TheLastMillennial

Recently my base model Surface Book 1’s original charger died so I replaced it with the SB 2's charger. Now whenever my...

It’s a long story, but I accidentally dropped my Surface Book Pen in the parking lot 3 days ago and only found it today....

I know I’m super late but I didn’t have any experience with the keys until now. Once you get the back plastic shell off, you can break the melted plastic bits using wire clippers. Scissors might work but may be difficult to work with due to their length. Don’t worry about breaking the melted bits, your calculator will fit back together just fine without them. From here you can follow this guide starting at step 7 for the TI-83 Plus since the calculator’s construction is roughly similar and it explains how to clean the contacts. I wouldn’t recommend removing the rubber membrane though. Let me know if you have any other questions!

If a whole row is dead then it’s likely the issue is a broken trace on the PCB. If you have a multimeter then you can probably pinpoint the place(s) where it’s broken and repair it if you know how to solder. There are many tutorials out there for fixing a broken trace, here is one I found. Let me know if you have any other questions!

It looks like it is possible! You’ll want to press Graph+Enter+8. Here’s the instruction for each possible keypad: Source: hackspire.org One important thing about the cable, the Nspire requires a Mini-USB connector which is slightly bigger than the more common Micro-USB you mentioned. :) Note: I had help from Adriweb on this one since I’m more experienced with the TI 84 lineup rather than Nspire calculators.

Unfortunately, TI doesn’t offer any repair centers anywhere. If your calculator is still within warranty they will replace the unit, but if it’s out of warranty then you’ll have to pay for a new one. Your problem likely has a very easy fix so there shouldn’t be any need to contact TI yet. (1) This may be as simple as the contrast being too low. Turn the calculator ‘on’ as you normally would. Now press [2nd] then the up arrow multiple times. After a couple times of pressing [2nd] and the up arrow, the screen will appear again if the contrast was the issue. (2) If that’s not the issue then, as jostewcrew suggested, try changing out your backup battery. There’s a guide for accomplishing that here: Texas Instruments TI-83 Plus Backup Battery Replacement (3) If it still doesn’t turn on then there may be an issue with the screen itself. If you have the link cable that connects your calculator to your computer, install ‘TI Connect’ (Not ‘TI Connect CE’) on your computer then connect the calculator to your...

Hi, it sounds like your calculator is still functioning, you may have misunderstood how to send over the OS. Here’s a tutorial for the TI 84 Plus CE: TI-84 Plus CE Recovery Techniques. Although it’s a different model, the steps are very similar. The only difference is you need to send over OS 4.2 which you can find here: https://tiplanet.org/forum/archives_voir... I think your problem may have been you tried to send over the incorrect OS because I couldn’t find a compatible version for your calculator on TI’s website. Where did you happen to find your copy? Your calculator should be working again. If it’s not, I may have something else you can try to fix it!

Hi, does your computer recognize your calculator when you plug it in? If so, then there’s definitely a hardware problem with the screen and you’ll need to contact TI Cares to get a replacement calculator. Thankfully your calculator is still covered under the 1 year warranty. If you want, you can try to run a LCD self test to see if it changes your screen at all. To do this: (1) Turn the calculator on, then press [mode]>[alpha]>[s]. (If you’d like a video tutorial, I have one here.) (2) Then press [enter] 3 times. (3) Now press [1]. (4) The self test will start. Press [enter] slowly 8 times to cycle through each test. (5) Press [enter] one more time to quit. There may be a small chance that this is a software problem and I’d suggest following TI-84 Plus CE Recovery Techniques. just in case.

Sounds like you have the same issue as this guy: Certain buttons not working

Sadly no, even if the component is compatible with your calculator, TI has designed the OS to only use as much Archive space as the original FLASH chip. This is true for all TI 84 and TI 83 calculators as far as I know. If all you want is some more storage to offload some things, you can connect your calculator to your computer using TI Connect (not the CE version). You can then use your computer to store programs and things you're not using.

Reset the calculator by re-setting the battery. The number 1 will not come off of the screen

You can find replacement parts on places like Digikey, Aliexpress, and likely even Adafruit or Sparkfun. You’ll have to find a port with the correct footprint of course. If your port is too mutilated to tell, here’s some photos I referred from: top down view and close up. You’ll want a port that is 2.5mm and has 3 conductors and 3 contacts. I don’t have the dimensions of the original port, however with some quick research, I found this port which looks like it should fit. The only issue is the back contact doesn’t line up with the contacts on the PCB. You can likely just solder a wire from the contact to the PCB however, if you look at some of the sites I provided above then you may be able to find a more suited part.

So you're saying when you try charge the calculator it doesn't charge the battery at all? Does the LED next to the charging port turn solid orange when you plug it in? Have you tried a different power source (i.e. your computer or a wall block) or a different cable?

@tfc_cnc Hi, first off I really appreciate all the information you provided, it makes this a lot easier to diagnose! Unfortunately if reinstalling the OS (step 4) does not work, then there’s nothing more you can try on the software side. However, If the battery indicator never turns green even after charging overnight then there may be a defect with the battery itself. Try replacing the battery; if that doesn’t work then I think you’ll need to contact TI Cares. I have no idea why some calculator just die for no reason. Please let me know if you get it working again!

You can’t buy replacement parts for either one without finding a donor calculator somewhere. If it’s just the screen protector that’s damaged then you can just pull it off since it’s only held on by weak glue. If your LCD is cracked then you’ll need to find another TI 84 Plus CE and swap the LCDs. Fortunately all displays are compatible with all hardware revisions so it doesn’t matter which one you get (just make sure you do NOT get a TI 84 Plus CSE since it does NOT have the same LCD).

@Infine Axel, I think this is the exact question topic you’re looking for: Why my charging light is always on? It kills the battery..

Oh no! What do you mean by “ when I pulled the screws, the screws came off the cover, like they are completely jammed”? Are you saying the screws on the battery compartment fell out? If so, that’s not normal. They should stay on the battery compartment.

Do you have any idea why your calculator could have suddenly died like this? How long have you had it? It’s possible it could just be defective.

I know you said it wouldn’t turn on, but perhaps you could try connecting your calculator to power then trying TI-84 Plus CE Recovery Techniques. ?

@forestguzman That’s not really an easy project. Perhaps there’s something wrong elsewhere in the calculator that’s easier to fix. Can you please tell me exactly what’s wrong with your calculator? Have you tried looking at TI-84 Plus CE Recovery Techniques. ?

For a project like that I’d suggest making a topic on a calculator forum like Cemetech.net or tiplanet.org since there are many people with more knowledge on that than I have.

Sadly, even if you got a different color, a body swap isn't easy. There's heat melted and glued parts that are difficult if not impossible to put back. Your best bet is to try and glue it back together, or try and use the warranty to get a new calculator. :/

@evankaba Well the goal is to buy a cheap, broken calculator not a brand new one. Unfortunately it’s quite difficult to find a broken TI 84 Plus CE. It’s also very difficult to find replacement parts since TI sources many parts directly from manufacturers. Could you share what’s wrong with your calculator and which part you need? I might be able to help you out.

@the_pimaster Sorry it took a lot longer for this one. I’ve been asking some of my friends about this and unfortunately I think your best bet is to contact TI. I’ve never seen a calculator just… die like that before and it’s quite confused me; if I find a solution I’ll be sure to notify you. For now though you can email them at: ti-cares@ti.com or call 1-800-TI-CARES (toll free). I apologize I wasn’t able to help you with this, if TI somehow gets it working again, please inform me how they did it!

@the_pimaster Ok, just checking, you do have a TI-84 Plus CE? There are similar calculators out there that have different key combos. Also, what do you mean by On+Ac+Reset? The correct combination is [2nd]+[del]+Reset. I’m surprised the computer doesn’t even recognize the calculator is connected, does the LED by the USB port turn on when you connect it to power? If so, what color?

What were you doing when the calculator was last working? Did you accidentally spill something on it, drop it, or crush it?